Exploratory, draft or "testing the waters" committees are formed solely for the purpose of determining the feasibility of an individual’s candidacy for office. The activities of exploratory committees may include polling, travel, and telephone calls to determine whether the individual should become a candidate.

The exploratory committee has been around for decades, and technically it creates a legal shell for a candidate who expects to spend more than $5,000 while contemplating an actual run. Under the rules, exploratory money may be raised without the full disclosure of sources required of true candidates. Only when the candidate drops the exploratory label does the full responsibility of transparency apply.
Candidates use an exploratory committee as not only a transitional phase for their bookkeeping but as an extra claim on media attention. Some of the most skillful handlers like to leak word that their candidate is testing the waters, then leak word that he or she is thinking about forming an exploratory committee. Additional "news" can be made when the same candidate actually forms such a committee and registers with the Federal Election Commission. Yet a fourth round of attention may be generated when the word exploratory gets dropped from the committee filing.〔(NPR: Declaring for President is a Dance of Seven Veils )〕